import delimited using "C:\Users\jkbrueck\Documents\STATA\Fuel 4\US data\Calvin3.csv", clear

rename first_flight ff2
gen type = plane_model
replace type = "777-200ER" if type == "777-200LR"

save "C:\Users\jkbrueck\Documents\STATA\Fuel 4\US data\Calvin3.dta", replace

